Wyoming Climate
How Wyoming's latest month ranks since 1895, the normals at its main weather stations, and the climate page for every town.
How Wyoming is running
NOAA NCEI Climate at a Glance, from the nClimGrid analysis of every station, updated early each month. A rank of 1 is the highest or lowest of all years since 1895.
August 2026 in Wyoming: 67.1°F (+2.5 °F against 1991-2020), the 7th warmest in 132 years on record.
August 2026 in Wyoming: 1.34 in (+0.34 in against 1991-2020), the 29th wettest in 132 years on record.
January to August 2026 in Wyoming: 48.6°F (+4.0 °F against 1991-2020), the warmest in 132 years on record.
January to August 2026 in Wyoming: 8.49 in (-2.81 in against 1991-2020), the 16th driest in 132 years on record.
- Warmest August
- 68.1°F in 2003
- Coolest August
- 59.4°F in 1927
- Wettest August
- 3.19 in in 1930
- Driest August
- 0.23 in in 1944
Every year since 1895
Main weather stations
Annual 1991-2020 normals at the first-order (airport and Weather Service) stations; freeze dates are the median for 32°F.
| Station | Avg high | Avg low | Precipitation | Snowfall | Last freeze | First freeze |
|---|---|---|---|---|---|---|
| Big Piney Marbleton AP | 53.1°F | 19.8°F | 7.66 in | |||
| Buffalo Johnson CO AP | 57.6°F | 35.2°F | 12.55 in | May 13 | October 1 | |
| Casper Natrona CO AP | 59.7°F | 31.5°F | 12.22 in | 71.8 in | May 26 | September 22 |
| Cheyenne | 59.2°F | 34.6°F | 15.41 in | 62.9 in | May 12 | October 1 |
| Douglas Converse CO AP | 61.1°F | 31.5°F | 11.22 in | May 23 | September 22 | |
| Evanston Burns Fld | 53.6°F | 31.1°F | 9.51 in | June 3 | September 25 | |
| Gillette Campbell AP | 58.9°F | 32.6°F | 13.58 in | May 22 | September 25 | |
| Greybull S Big Horn AP | 59.9°F | 32.6°F | 5.55 in | May 4 | October 1 | |
| Lander 11 Sse | 58.0°F | 33.5°F | 16.02 in | May 13 | October 2 | |
| Lander Hunt Fld AP | 58.5°F | 31.6°F | 13.23 in | 87.6 in | May 18 | September 27 |
| Laramie Rgnl AP | 55.1°F | 27.6°F | 10.52 in | June 2 | September 15 | |
| Moose 1 Nne | 50.4°F | 23.1°F | 24.13 in | June 24 | August 28 | |
| Rawlins Muni AP | 56.2°F | 30.0°F | 9.04 in | June 1 | September 15 | |
| Riverton | 58.0°F | 31.1°F | 8.56 in | May 16 | September 28 | |
| Rock Springs AP | 55.0°F | 32.4°F | 7.55 in | 54.0 in | May 22 | September 28 |
| Sheridan CO AP | 59.7°F | 31.1°F | 14.93 in | May 21 | September 23 | |
| Sundance 8 Nnw | 50.0°F | 32.2°F | 29.21 in | May 23 | September 24 | |
| Torrington Muni AP | 63.9°F | 34.3°F | 12.82 in | May 11 | September 29 | |
| Worland | 59.9°F | 29.2°F | 7.73 in | May 13 | September 26 | |
| Yellowstone Lake | 45.1°F | 18.9°F | 23.09 in |
Frost dates at every station in Wyoming
Counties
- Albany County
- Big Horn County
- Campbell County
- Carbon County
- Converse County
- Crook County
- Fremont County
- Goshen County
- Hot Springs County
- Johnson County
- Laramie County
- Lincoln County
- Natrona County
- Niobrara County
- Park County
- Platte County
- Sheridan County
- Sublette County
- Sweetwater County
- Teton County
- Uinta County
- Washakie County
- Weston County
Towns
- Afton
- Alpine
- Antelope Valley-Crestview
- Arapahoe
- Bar Nunn
- Basin
- Bear River
- Big Piney
- Buffalo
- Byron
- Casper
- Cheyenne
- Clearview Acres
- Cody
- Cokeville
- Cowley
- Dayton
- Diamondville
- Douglas
- Dubois
- Ethete
- Evanston
- Evansville
- Fort Washakie
- Fox Farm-College
- Gillette
- Glenrock
- Green River
- Greybull
- Guernsey
- Hanna
- Hartrandt
- Hoback
- Jackson
- James Town
- Kemmerer
- La Barge
- Lander
- Laramie
- Lovell
- Lucerne
- Lusk
- Lyman
- Marbleton
- Mills
- Moorcroft
- Moose Wilson Road
- Mountain View
- Newcastle
- North Rock Springs
- Pine Bluffs
- Pine Haven
- Pinedale
- Powell
- Purple Sage
- Rafter J Ranch
- Ranchester
- Ranchettes
- Rawlins
- Reliance
- Riverton
- Rock Springs
- Saratoga
- Sheridan
- Shoshoni
- Sleepy Hollow
- South Greeley
- South Park
- Star Valley Ranch
- Story
- Sundance
- Thermopolis
- Torrington
- Upton
- Vista West
- Washakie Ten
- Wheatland
- Wilson
- Worland
- Wright
Sources
Rankings: NOAA NCEI Climate at a Glance. Normals: NOAA NCEI U.S. Climate Normals, 1991-2020. Both public domain.